Mold.



P. OTT. MOLD.

APPLICATION FILED JULY 27, 1914.

Patented Feb. 9, 1915 l I I 0'. WASHINGTON, Dy 6.

i nnrrnn strains PATENT QFMOEQ PAUL OTI', OF PITTSBURGH. EENNSYLVANIA.

MOLD.

Application filed ul 27, 1914,,

To all whom it may concern:

Be it known that 1, PAUL. 011, a citizen of the United States of America, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Molds, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to knock down molds and has for its object to provide means, in a manner as hereinafter set forth, for conveniently and detachabiy connecting the walls of a mold together and to further provide means in a manner as hereinafter set forth, for increasing the length or width of the mold when the occasion so, requires.

Further objects of the invention are'to provide a knock-down mold which is simple in its construction and arrangement, strong, durable, efficient in its use, readily set up and comparatively inexpensive to manufacture.

4 l/Vith the foregoing and other objects in view the invention consists of the novel construction, combination and arrangement of parts as hereinafter more specifically de scribed and illustrated in the accompanying drawings, wherein is shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which come within the scope of the claims hereunto appended.

In the drawings wherein like reference 7 characters denote corresponding parts throughout the several views :Figure 1 is a perspective view of a. mold in accordance with this invention. Fig. 2 is a top plan of one of the walls of the mold. Fig. 3 is a detail illustrating one of the coupling elements for the stay member. Fig. 4: is a detail illustrating a wedge. Fig. 5 is an end view of an extension member. Fig. 6 is an elevation of an extension member.

The mold may consist of four walls, each of a unitary member, or when the extension piece is employed, opposing walls of a mold may consist of a plurality of sections.

One of the walls of the mold is indicated at 7, another at 8, another at 9 and the other at 10. The walls 7 and 8 are similar in construction, and the walls 9, 10 are also similar in construction. The description of the wall 7 will apply to the wall 8 and said wall 7 is formed from an apertured body 11, having a flange 12 at its top and a flange 13 Specification of Letters Patent.

Patented Feb. 9, 1915}.

Serial No. 853,361.

at its bottom, The flanges, 12 13, project outward and are of the same length the.

length of the body 11. The apertures of the body 11 are indicated at 1 1. They body 11 at one end is formed with a pair of outwardly projecting hooks 15 which are superposed and are spaced from each other and the body 11 at the other end is provided with a pair of outwardly projecting hooks 16, which are superposed and spaced from each other. Each of the hooks 15, 16. is angle shaped and the vertical leg depends downward from the horizontal leg thereof.

The walls 9, 10 are constructed similar to the wall 7, but with this exception, the hooks 17 at one end and the hooks 18 at the other end of each of said walls 9, 10, have the vertical legs project upward from the horizontal legs thereof. Each of the walls. of a mold is provided with a pair of holder pins 20.

\jVhen the mold is set up the hooks 15. of the walls 7, 8, and the hooks 16 of the walls 7, 8 engage with the hooks 17, 18 of the wall 9. l/Vhen the hooks of the walls engage with each other, wedge members 21 are interposed between the vertical legs of the hooks 17, 18 and the horizontal legs of the hooks 15, 16, and wedge members 22 are interposed between the vertical legs of the hooks 15, 16 and the horizontal legs of the hooks 17, 18. The wedge members fixedly secure the walls of a mold together.

Arranged within the walls of the mold, when the latter is set up, are a pair of opposite stay members, and each of which consist of a flat strip 23 positioned against the inner face of the wall 9, or the wall 10, and said strip has angular-shaped ends 24:, which engage the inner faces of the walls 7, 8. The angular'shaped ends 24 are slotted and register with apertures in the walls 7, 8 and extending through the slotted ends 2 1 are head coupling members 25, which project outwardly from the walls 7, 8, and are formed with slots 26, through which extend wedges 27 for detachably securing the coupling members in position whereby the retaining members will be coupled in position. One retaining member may be employed if desired, and can be positioned at any point between the walls 7, 8 at the upper or lower row of openings of each of said walls onabling the adjustable positioning of a single, or a pair of retaining members.

If desired to increase the length of the mold, the Walls 9, 10 are each formed with two or more sections and sections of each wall are connected together by an extension plate consisting of a rectangular body 28, having openings 29 and further having its inner face provided with an upper and a lower pair of hooks. The hooks of the upper pair are indicated at 30 and the hooks of the lower pair at 31. The hooks 30, 31 are angle-shaped and the vertical legs thereof depend downward from the horizontal le s.

When an extension pin is employed, body portion 28 is arranged against the outer face of the sections of the wall 10 and wall 9 and the hooks 30 engage with the upper hook 17 and an upper hook 18 of a section of the wall 9 or 10, while hooks 81 engage with the upper hook 17 and a lower hook 18 of a section of the wall 10 or 9. Wedges 20, 21 are employed in connection with hooks 30, 31, in the same manner as herein before referred to with respect to the hooks l5, l7 and 15, 18.

WVhat I claim is 1. A mold comprising a series of walls, each of said walls having each of its ends provided with a pair of angle-shaped hooks,

\ hooks of each pair arranged in spaced relation, the vertical legs of the hooks of certain of the walls extending upward from the horizontal legs of said hooks and the vertical legs of the hooks of the other of the walls depending from the horizontal legs of said hooks, the hooks of the walls engaging and coupling the walls together, a retaining member adapted to be positioned between a pair of said walls, and coupling members extending through said retaining members and certain of said walls and provided with wedges for maintaining the retaining members in position.

:2. A mold comprising a series of walls, each of said walls having each of its ends provided with a pair of angle-shaped hooks, hooks of each pair arranged in spaced relation, the vertical legs of the hooks of certain of the walls extending upward from the horizontal legs of said hooks and the vertical legs of the hooks of the other of the walls depending from the horizontal legs of said hooks, the hooks of the walls engaging and coupling the walls together, and extension plates provided with hooks engaging with the hooks of a plurality of walls for maintaining these latter in alinement.

In testimony whereof I affix my signature in the presence of two witnesses.

PAUL OTT.

Witnesses MAX H. SroLovlrz, MARIE H. ZI-IIRA.

L Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Eatents,

Washington, IE. 6." 

